How to use Haraka librairy - orm

Question

Can someone helps me with some example using haraka librairy?

Answer 1

We use Haraka as our application mail server. We have written a simple plugin which takes any incoming mail and post it to our application web server.
Here is the plugin script. Just save it to a file do the necessary name changes and add the path to Harakas config/plugins file.
var
fs = require('fs'),
query_string = require('querystring'),
logger = require('./logger'),
DROP_DIRECTORY_PATH = '/path/haraka/drop/',
RETRY_DIRECTORY_PATH = '/path/haraka/retry/',
HOST_NAME = 'this_haraka_servers_name';
exports.hook_queue = function (next, connection, params) {
'use strict';
function haraka_log(function_name_in, section_in, text_in) {
var log_text = '[HttpMail]';
log_text += ' [' + function_name_in + ']';
log_text += ' [' + section_in + ']';
log_text += ' ' + text_in;
logger.lognotice(log_text);
}//function haraka_log
function move_file(filename_in) {
fs.rename(DROP_DIRECTORY_PATH + filename_in, RETRY_DIRECTORY_PATH + filename_in, function (err) {
if (err) {
//throw err;
haraka_log('move_file', 'fs.rename ... failed', filename_in + '\n' + JSON.stringify(err));
} else {
haraka_log('move_file', 'fs.rename ... success', filename_in);
}
});
}//function move_file
function delete_file(filename_in) {
fs.unlink(DROP_DIRECTORY_PATH + filename_in, function (err) {
if (err) {
//throw err;
haraka_log('delete_file', 'fs.unlink ... failed', filename_in + '\n' + JSON.stringify(err));
} else {
haraka_log('delete_file', 'fs.unlink ... success', filename_in);
}
});
}//function delete_file
function http_post_file(filename_in) {
var
http = require('http'),
post_options = {
host: 'my.server.com',
port: 80,
path: '/http_mail/' + HOST_NAME + '?' + query_string.stringify({FileName: filename_in}),
method: 'POST',
headers: {'Content-Type': 'text/plain'}
},
post_request,
read_stream;
haraka_log('http_post_file', 'Before http.request', filename_in);
post_request = http.request(post_options, function (post_response) {
haraka_log('http_post_file', 'post_response', ' post_response.statusCode = ' + post_response.statusCode + ' : ' + filename_in);
if (post_response.statusCode === 200) {
delete_file(filename_in);
} else {
move_file(filename_in);//Posted later by retry script;
}
post_response.resume();
});//post_request = http.request(post_options, function(post_response) {
post_request.on('error', function (err) {
haraka_log('http_post_file post_request.on(\'error\' ...)', err.message, filename_in);
move_file(filename_in);
});//post_request.on('error', function(err) {
read_stream = fs.createReadStream(DROP_DIRECTORY_PATH + filename_in);
read_stream.pipe(post_request);
}//function http_post_file
var
x_sender = connection.transaction.mail_from,
x_receiver_list = connection.transaction.rcpt_to,
filename = x_sender + '_' + new Date().toISOString() + '_' + connection.uuid,
writeStream;
filename = filename.replace(/\//g, '');
connection.transaction.add_header('x-sender', x_sender.toString());
x_receiver_list.forEach(function (value) {
connection.transaction.add_header('x-receiver', value.toString());
});
haraka_log('main', 'filename', filename);
writeStream = fs.createWriteStream(DROP_DIRECTORY_PATH + filename);
//connection.transaction.message_stream.pipe(writeStream, {dot_stuffing: true, ending_dot: true});
connection.transaction.message_stream.pipe(writeStream, {dot_stuffing: true});
writeStream.on("close", function () {
haraka_log('main writeStream.on("close"...', 'File Saved!', filename);
http_post_file(filename);
next(OK);
});//writeStream.on("close", function()
};//exports.hook_queue = function(next, connection, params) {